72078720

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:233

約数の個数: 256

約数和(自身を含む): 272609280

約数和(自身を除く): 200530560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 31, 32, 35, 40, 42, 48, 56, 60, 62, 64, 70, 80, 84, 93, 96, 105, 112, 120, 124, 128, 140, 155, 160, 168, 173, 186, 192, 210, 217, 224, 240, 248, 280, 310, 320, 336, 346, 372, 384, 420, 434, 448, 465, 480, 496, 519, 560, 620, 640, 651, 672, 692, 744, 840, 865, 868, 896, 930, 960, 992, 1038, 1085, 1120, 1211, 1240, 1302, 1344, 1384, 1488, 1680, 1730, 1736, 1860, 1920, 1984, 2076, 2170, 2240, 2422, 2480, 2595, 2604, 2688, 2768, 2976, 3255, 3360, 3460, 3472, 3633, 3720, 3968, 4152, 4340, 4480, 4844, 4960, 5190, 5208, 5363, 5536, 5952, 6055, 6510, 6720, 6920, 6944, 7266, 7440, 8304, 8680, 9688, 9920, 10380, 10416, 10726, 11072, 11904, 12110, 13020, 13440, 13840, 13888, 14532, 14880, 16089, 16608, 17360, 18165, 19376, 19840, 20760, 20832, 21452, 22144, 24220, 26040, 26815, 27680, 27776, 29064, 29760, 32178, 33216, 34720, 36330, 37541, 38752, 41520, 41664, 42904, 48440, 52080, 53630, 55360, 58128, 59520, 64356, 66432, 69440, 72660, 75082, 77504, 80445, 83040, 83328, 85808, 96880, 104160, 107260, 110720, 112623, 116256, 128712, 138880, 145320, 150164, 155008, 160890, 166080, 171616, 187705, 193760, 208320, 214520, 225246, 232512, 257424, 290640, 300328, 321780, 332160, 343232, 375410, 387520, 416640, 429040, 450492, 465024, 514848, 563115, 581280, 600656, 643560, 686464, 750820, 775040, 858080, 900984, 1029696, 1126230, 1162560, 1201312, 1287120, 1501640, 1716160, 1801968, 2059392, 2252460, 2325120, 2402624, 2574240, 3003280, 3432320, 3603936, 4504920, 4805248, 5148480, 6006560, 7207872, 9009840, 10296960, 12013120, 14415744, 18019680, 24026240, 36039360, 72078720]

約数ペア:

[(1, 72078720), (2, 36039360), (3, 24026240), (4, 18019680), (5, 14415744), (6, 12013120), (7, 10296960), (8, 9009840), (10, 7207872), (12, 6006560), (14, 5148480), (15, 4805248), (16, 4504920), (20, 3603936), (21, 3432320), (24, 3003280), (28, 2574240), (30, 2402624), (31, 2325120), (32, 2252460), (35, 2059392), (40, 1801968), (42, 1716160), (48, 1501640), (56, 1287120), (60, 1201312), (62, 1162560), (64, 1126230), (70, 1029696), (80, 900984), (84, 858080), (93, 775040), (96, 750820), (105, 686464), (112, 643560), (120, 600656), (124, 581280), (128, 563115), (140, 514848), (155, 465024), (160, 450492), (168, 429040), (173, 416640), (186, 387520), (192, 375410), (210, 343232), (217, 332160), (224, 321780), (240, 300328), (248, 290640), (280, 257424), (310, 232512), (320, 225246), (336, 214520), (346, 208320), (372, 193760), (384, 187705), (420, 171616), (434, 166080), (448, 160890), (465, 155008), (480, 150164), (496, 145320), (519, 138880), (560, 128712), (620, 116256), (640, 112623), (651, 110720), (672, 107260), (692, 104160), (744, 96880), (840, 85808), (865, 83328), (868, 83040), (896, 80445), (930, 77504), (960, 75082), (992, 72660), (1038, 69440), (1085, 66432), (1120, 64356), (1211, 59520), (1240, 58128), (1302, 55360), (1344, 53630), (1384, 52080), (1488, 48440), (1680, 42904), (1730, 41664), (1736, 41520), (1860, 38752), (1920, 37541), (1984, 36330), (2076, 34720), (2170, 33216), (2240, 32178), (2422, 29760), (2480, 29064), (2595, 27776), (2604, 27680), (2688, 26815), (2768, 26040), (2976, 24220), (3255, 22144), (3360, 21452), (3460, 20832), (3472, 20760), (3633, 19840), (3720, 19376), (3968, 18165), (4152, 17360), (4340, 16608), (4480, 16089), (4844, 14880), (4960, 14532), (5190, 13888), (5208, 13840), (5363, 13440), (5536, 13020), (5952, 12110), (6055, 11904), (6510, 11072), (6720, 10726), (6920, 10416), (6944, 10380), (7266, 9920), (7440, 9688), (8304, 8680)]